I picked up two plastic tubs at the local Asian market in Albany NY that I think will make PERFECT ripening boxes. They are 7″by 7″ and 4″ high. They have a small port on the lid that can be opened or closed depending on the airflow needs of a given cheese. The best feature is the raised perforated “tray” that sits a 1/4″ above the bottom. They were only $3.00 each and if they had more in stock I would have grabbed a few more.